• Is smoking heaviness causally associated with alcohol use? A Mendelian randomization study in four European cohorts 

      Taylor, Michelle; Rode, Line; Bjørngaard, Johan Håkon; Taylor, Amy E.; Bojesen, Stig E.; Åsvold, Bjørn Olav; Gabrielsen, Maiken Elvestad; Lewis, Glyn; Nordestgaard, Børge G.; Romundstad, Pål Richard; Hickman, Matthew; Munafò, Marcus R. (Journal article; Peer reviewed, 2018)
      Background Observational studies have shown that tobacco and alcohol use co-occur, but it is not clear whether this relationship is causal. Methods Using data from the Avon Longitudinal Study of Parents and Children ...